from tkinter import *

coords = [0, 0, 10, 0, 10, 10, 20, 10, 20, 30, 10, 30, 10, 20, 0, 20]

n = int(input())
x = int(input())
y = int(input())

if n == 0 and x >= 0 and x <= 500 and y >= 0 and y <= 500:
    pass
elif n > 0 and 0 * n + x >= 0 and 0 * n + y >= 0 and 20 * n + x <= 500 and 20 * n + y <= 500:
    pass
elif n < 0 and 20 * n + x >= 0 and 20 * n + y >= 0 and 0 * n + x <= 500 and 0 * n + y <= 500:
    pass
else:
    print("Размер фигуры превышает размер поля")
    exit()

root = Tk()
root.title("Айти Марафон")
root.geometry("500x500")

canvas=Canvas(bg="white", width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)
canvas.create_polygon(coords[0] * n + x, coords[1] * n + y, coords[2] * n + x,
                      coords[3] * n + y, coords[4] * n + x, coords[5] * n + y,
                      coords[6] * n + x, coords[7] * n + y, coords[8] * n + x,
                      coords[9] * n + y, coords[10] * n + x, coords[11] * n + y,
                      coords[12] * n + x, coords[13] * n + y, coords[14] * n + x, coords[15] * n + y)

root.mainloop()